Burner.



W. w. CASE, s1.

BURNER. APPLICATION FILED MAB. 3, 1911.

Patented Sept 19, 1911.

2 inns-Burma: 1.

w. w. CASE, sR.

BURNER.

APPLICATION FILED MAE. a, 1911.

Patented Sept. 19,1911.'

2 BHEETBSHBET 2.

WILLIS W. CASE, $11., OF DENVER, COLORADO.

BURNER.

Specification of Letters Patent.

Patented Sept. .19, 1911.

Application filed March 3, 1911. Serial No. 612,133.

To all whom it may concern:

Be it known that I, VILLIS WV. CASE, S12, a citizen of the UnitedStates, residing at Denver, in the county of Denver and State ofColorado, have invented. certain new and useful Improvements ilrBurners; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertainsto make and use the same.

This invention relates to oil burners for general uses, and has for itspurpose to pro vide a burner which will be more simple in construction,effective in action, and less expensive to manufacture than thoseheretofore proposed.

To these ends the invention consists in the novel details ofconstruction and combinations of parts more fully disclosed hereinafter,and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of thisspecification in which like numerals designate like parts in all theviews-Figure 1 is a side elevational view of a burner made in accordancewith my invention; Fig. 2 is, a top plan View partly in section of theparts shown in Fig. 1; Fig. 3 is an end' elevational view of the partsshown in Fig. 1 with a slightly modified form of foraminous plate; Fig.1 is a longitudinal sectional view of the burner; Fig. 5 is an endelevational view partly in sectionof the burner but looking in adirection opposite to that from which the parts shown in. Fig. 3 areseen; Fig. 6 is an enlarged detail View partly in section of the air retarding plates taken on the line 66 of Fig. 4 showing an arrangement ofperforations slightly differing from that disclosed in Fig. 3; Fig. 7 isan enlarged detail sectional view of a form of the plates slightlydiffering from that shown in Fig. 2 and removed from the burner; andFigs. 8, 9 and 10 are detail views of still further modified forms ofair retarding plates.

1 represents any suitable body portion, but preferably of metal,which isprovided with an enlarged air passage 2, and an oil passage 3. Passingthrough the bottom of the oil passage 3 is a hollow sleeve 4 providedwith an oval V-shaped port 5 for the admission of oil into the passage 6of the sleeve 4, and '1' represents a blunt pointed rod fitting thesleeve 4, as illustrated, and surrounded by the stufling box 8 in orderto prevent leakage of oil. The extreme end 9 of the rod 7 traverses thepassage (3 beneath the V-shaped opening 5, and as will be clear' fromFig. 2 of the drawings, enables a very fine regulation of the amount ofoil adinittcd to the passage 6. Any suihiblc means 1.0 may be providedfor turning the rod 7 upon its screw threads 11, and thereby adjustingthe end 9 of. said rod relatively-to the opening 5, as will be readilyunderstood.

The air passage 2 is connected with the delivery 13 of the burner,through the fo-. rainmous retarding plates 14 and 15 preferably providedwith the registering openings 16, 17 and 18 as shown. 'llheseplates maybe readily rotated relatively, to each other, so as to partially orentirely close the said openings 16 and 17 when desired, as will be morefully described below, and thereby regulate the quantity as well as thepressure of the air delivered through the mouth 13 of the burner. Theextreme end of the sleeve or tube 4 is preferably provided with a seriesof radially projecting fingers 20, as best shown in Fig. 2, and thesefingers are located substantially in the center of the larger openings18 of the retarding plates 14 and 15, for a purpose more fully disclosedhereinafter.

Suitably mounted in the casing 1 is a rod such as 21 having an eccentricfinger 22, which engages a slot 23 in one of the plates such as 15, sothat when said rod 21 is rotated on its longitudinal axis, the saidfinger 22 will cause the plate 15 to turn upon an axis passing throughits center and the tube 4, and thereby partially or entirely cause itsperforations 16 and 17 to move out of register with the correspondingperforations in its companion plate 14. In order that the rod 21 may beturned just far enough to make the registering passages 16 and 17 of thedesired size, it isprovided at its end opposite the linger 22 with anindex 25,

passing over a suitable scale 26 which conindex 25 in place. The saidplate 27 may be also conveniently provided with a turned up stop 81 tohunt the extreme movement of f the index finger 25.

wliereupon it enters the passage 6 of the sleeve or pipe at through theJ-shaped opening controlled by the extreme end 9 of the rod 7, and itfinds its way to the radiallyextending fingers 20 of the said pipe i,and owing to its surface'tension it tends to stick to said fingers. Airmay be admitted from any-suitable source through the passage 2,whereupon it blows through the central tapered opening 18 of theretarding plates between. the said fingers 20, and' across the end ofsaid passage (Sand thereupon finely divides or atomizes the oildelivered from the said pipe 4. This finely divided air and oil forms acone which leaves the burner through its mouth 13 and may be ignitedinside the furnace or other place at which it may be desired for use.The amount of oil in the conemay be regulated to a nicety by simplyadjusting the extreme end 9 of the rod 7 relatively to the V-shapedopening 5, and by this means the amount of heat delivered by theignitedcone is likewise adjusted to any desired degree.

In order that a more perfect. combustion may be attained, and also inorder that the cone may be'ignited at a point very closeto the inouth13, the index 25 is so turnedas to admit air through the registeringorifices l6 and 17 of the retarding plates 1-1 and 15.

Since the air under pressure in passing through these cone taperedorifices 16 and. 17 is greatly reduced in its velocity, it may enter thecone as almost still air, and thereupon admix With the oil and airentering through the orifices 18 almost to the mouth of the burner,which of course will cause the flame to extend up very close to saidmouth, as above stated, while at the same time furnishing suflicicntoxygen to insure a very ellicient combustion. Of course by turningthe'indcx 95 further so as to admit more air through the orifices 16 and17, the cone becomes longcr, and also by changing the position of theextreme end 9 of the rod 7, the said cone may be caused to deliver agreater or less (piantity of heat. Further,.by changing the degree ofthe registration of the openings 16- and 17, the oxidizing or reducingportion of the flame may be brought to any desired point of the materialbeing heat-- ed. This feature, among others, rcndcrsmy burnerexceedingly useful for metallurgical operations.

I find from actual tests that an exceedingly ellicier'; metallurgicalburner can be produced by the means abovedisclosed when air at onlyabout four ounces pressure is admitted into the passage 2. I havefurtherfound that by simply converging the orifices 16 and 17 asillustratcd in Fig. 7, the cone. can be made to converge at anyparticular point in the furnace, and thereby an intense heat may bedelivered wherever desired. After converging, of course, said cone thendiverges as it traverses the furnace.

In the modification shown in Fig. 8, a single sheet 35 of foraminousmaterial is disclosed. I find for certain purposes that such a sheet, oreven wire cloth, may be used instead of the retarding plates 14 and 15.

In the further modifications disclosed in Figs. 9 and 10, I haveillustrated retarding disks 36 and 37 provided with radial openings 38adapted to be placed into registering or non-registering position and bya means similar to that disclosed in connection with the retarding diskslet and 15. I have found for certain purposes that these disks 36 and'3; give excellent results. In all cases. however, it will be observedthat I may use a gravity feed for the oil and that a simple fan blowerproducing a. pressure I as low as from four to six ounces or less givesmost excellent results.

It is obvious that those skilled in the art may vary the details ofconstruction and the arrangement of parts without departing from thespirit of my invention, and there fore I do not wish to be limited tosue features except as may be required by the claims."

- What I claim 1s:

1. In an oil burner, the combination of means for supplying oil; a valvecontrolling said means; means comprising a plurality of radiallyextending fingers for-subdivid- 111g said 011 after it passes saidvalve; means for admitting air under pressure past said subdividingmeans and thereby atomizing said Oll and forming a fuel cone; and meanscomprising a forannnous plate for dis-v 'cl'iarging additional air undera less pressure than said first mentioned air into said cone,substantially as described.

' 2. In an oil burner, the combination with.

a casing provided with oil and. air passages,

of a pipe passing through said oil passage provided with. an orifice; arod located in said pipe adapted to control said orifice; means at oneend of said pipe adapted to subdivide any oil that may pass saidorifice; and a plate having a central opening coacting with saidsubdividing means adapted to permit air undcr' pressure from said airpassage to blow past said subdividing means'and thereupon furthersubdivide said oil, substantially as described. v I

3. In an oil burner, the combination,with a casing provided with. oiland air passages of a pipe passing through said oihpassage.

a. rod

provided with a Vshaped orifice; I located in said pipe, the end of whicis adapted to control said orifice; means comprising radiallyextendingfirige s at one end 01 saidpipe adapted to subdivide any oilthat may pass said orifice; and a to raminous plate having a centralopening 00- means and thereupon further subdivide said oil,substantially as described.

4. In an oil burner, the combination with a casing provided with oil andair passages of a pipe provided with a V-shaped opening passing throughsaid oil passage; a rod hav-- ing a blunt end located in said pipe andcontrolling said opening; a plurality of oil dividin'g ,fingersassociated with said pipe; and a plurality of foran'unous air retardingplates having registering orifices-enacting with said fingers,substantially as de scribed.

5. In an oil burner, the combination with a casing provided with oil andair passages of a pipe provided with V-shaped opening passing throughsaid on passage; a rod having a blunt end located in said pipe andcontrolling said opening; a plurality of oil dividing fingers associatedwith said pipe; a plurality of for-aminous air retarding plates havingregistering orifices coacting with said fingers; and means for causingsaid orifices to register or non-register at will, substantially asdescribed.

. 6., In an oil burner, the combinationwith a casing provided with oiland air passages of a pipe provided with a- Vshaped open;

Uopies oi this patent may be obtained for live cents each, by addressingthe Commissioner of Patents,-

ing passing through said oil passage; a rod having a blunt end locatedin said pipe and controllingsaid opening; a plurality of oil dividingfingers associated with said pipe; a plurality of i'oraniinous airretarding plates having registering orifices coacting with, saidfingers; a rod carried by said casing provided with an index; andconnections between said rod and Zine of said plates adapted to causesaid orifices to register or non-register at will, substantially asdescribed.

7. In an oil burner, the combination with a casing provided with oil andair passages of a pipe provided with a V-shaped opening passing throughsaid oil passage; a rod having a blunt end located in said pipe andcontrolling said openii'ig'; a plurality of oil dividing fingersassociated with said pipe; at ph'ira'lity of foraniinous air retardingplates having registering orifices courting with said fingers; a rodcarried by said casing having a reduced end; an index on said end; abent plate provided with a scale holding said rod in place; and aconnection between said rod and one of said plates adapted to cause saidorifices to move relatively to each other, substantially as described.

In testimony ture, in presence of two witnesses.

WILLIS \V. CASE, Sn. Witnesses:

T. A. \Vrrnnusroon. GEO. B. Prr'rs.

3'17 ashington, D. C.

